The Tao of Micro Service

图难于其易，为大于其细；

天下难事，必作于易；

天下大事，必作于细。

是以圣人终不为大，故能成其大

     -- 老子 Lao Zi

• Be small, not big.
• Be simple, don't be complicated.
• Be compact, don't loose
• Be independent and don't rely too much on others.
• To serve others, not just for yourself
• Be good at observation.
• Find a problem
• Solve the problem
• Preventing problems

Is Micro service a silver bullet?

Issues

• Distributed complexity
• Operational complexity
• Testing complexity
• Avalanche effect
• Diagnose complexit

Solution

• Decompose, clear boundary and interface
• Quick Iteration, fix errors ASAP
• Automation everything: build, deploy, testing, etc.
• High availability and Fault-tolerant
• DDD: Domain Driven Design
• MDD： Metrics Driven Development

Architecutre

style

• exclusive data store
• stateless
• CI and build independently
• Container-based deployment

collaboration patterns

• Producer-Consumer
• Publisher-Subscriber
• Leader-Follower